You can change the server recovery passphrase when you install ePO - On-prem and link it to a SQL database restored with Disaster Recovery Snapshot records.
You must have administrator rights to change the server recovery passphrase.
Change the server recovery passphrase from the Server Settings page. You can also change the existing passphrase without knowing the previously configured passphrase. Once the passphrase is changed, the next Snapshot will be encrypted using the new passphrase, but the new passphrase is not applied to any Snapshot currently stored in the database.
Important
If you change the passphrase, we recommend that you run another Snapshot task as soon as possible, so that your database contains a snapshot encrypted with a known passphrase.
Select Menu → Configuration → Server Settings, select Disaster Recovery, then click Edit.
From Server recovery passphrase, click Change passphrase, then type the new passphrase.